OK, I see what you mean now but those solutions come with more problems. The rain gauge is from a weather station that is no longer in use and I was hoping to be able to use it as is. To try and move the reed switch or change it to a Hall Effect sensor means that I would have to break open the compartment holding the reed switch as it is totally sealed against the weather. Before connecting it to Blynk I had it running on a Nano and it was able to read every pulse perfectly so I was hoping for an easy changeover to Blynk. Thanks for your suggestions though, I will have a think about what you say and see if it is doable.